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9025 River Road, Suite 200 | Indianapolis, Indiana 46240TEL 317.547.5580 | FAX 317.543.0270www.structurepoint.comProject NumberCERTIFIED BYISSUANCE INDEXDATE:PROJECT PHASE:REVISION SCHEDULENO.DESCRIPTIONDATE04/17/2019DP/ADLS2018.02759INDIANAPOLISREHABILITATIONHOSPITAL1260 CITY CENTER DRIVECARMEL, INDIANA 46032WB DEVELOPMENT PARTNERS4441 W AIRPORT FREEWAYSUITE 330IRVING, TEXAS 75062PHONE: (214) 699-5137C005SPECIFICATIONS
SECTION 301 General301.01 IntroductionThis Chapter contains the minimum material requirements for construction of sanitary sewer facilities within the Indianapolis SanitaryDistrict.301.02 General for all MaterialsThe materials used in the construction shall be in full conformance with those guidelines set forth below and according to the applicableASTM, AWWA, and ANSI specifications. These material requirements are minimum requirements and are in part restatements ofrequirements set forth within the referenced standards, with noted exceptions. The Engineer shall be ultimately responsible for designingand selecting the appropriate material for each specific application. Information from the referenced specifications has been included withinthis Chapter for the convenience of the reader. However, the engineer, contractor, and manufacturer must also assume the responsibility offamiliarizing themselves with these requirements. The City will not assume responsibility for noncompliance with the referencedspecifications as a result of information not provided in this Manual.301.03Material MarkingsEach length of pipe and each manhole or other structure shall be marked per the Material Markings requirements of each respective ASTM,AWWA and/or ANSI Standard referenced within this Chapter.301.04 Certification of MaterialsThe Division or Department reserves the right to require material certification from the manufacturer prior to construction to ensure thematerial supplied conforms to the prescribed requirements. Upon request, the Contractor shall furnish a certificate of conformance to therequired ASTM, AWWA, and/or ANSI Standards, this Manual, and other conformance certifications in the form of affidavits of conformance,test results, and/or copies of test reports.Provisions for obtaining this certification shall be the responsibility of the Applicant. The City of Indianapolis does not assume theresponsibility for the expense of obtaining material certification.301.05Handling, Storage, and ColorThe handling, storage and color requirements for pipe material are as follows:1. Handling and StorageThe manufacturer shall package the pipe in a manner designed to deliver the pipe to the project site neatly, intact, and withoutphysical damage. The transportation carrier shall use an appropriate method to ensure the pipe is properly supported, stacked,and restrained during transport. On-site, the pipe shall be stored on clean, level ground to prevent undue scratching or gouging.2. ColorThe interior of the pipe shall be light colored to facilitate CCTV inspection. The pipe exterior may be colored per themanufacturer's standard color scheme with the exception of blue. Blue pipe shall not be used to avoid confusion with waterpipes.SECTION 302 Sanitary Sewer Pipe Material302.01 IntroductionThis Section applies to materials to be used for the construction of gravity sewers. For materials to be used for laterals refer to Section 303.For materials to be used for force mains refer to Section 304.For materials to be used for manholes refer to Section 305.302.02Allowable Pipe MaterialsThe following pipe materials are the only materials that may be used for gravity sanitary sewer installations:MaterialDesignationMax.Depth, Sizesft.(Nominal Diameter, in.)MinimumMaximumPolyvinyl ChlorideASTM D 303425815Pipe (PVC)ASTM F 679251848ASTM D 224140836AWWA C90040812AWWA C905401436Reinforced Concrete ASTM C 762524144Pipe(RCP)ASTM C 655Ductile Iron PipeASTM A 746AWWA C15140860Closed ProfileLarge DiameterASTM F 1803251854PVC PipeCentrifugally CastFiberglassReinforcedASTM D 3262401860Polymer MortarPipePrestressedConcrete CylinderAWWA C3014030144Pipe (PCCP)NOTE - The maximum depth is a guideline. Due to the variability of site conditions, the Engineer is ultimately responsible for certifyingthe pipe selected is acceptable for the depths listed and the specific project application.NOTE - The depth can be increase to forty (40) feet provided the joints and gaskets are designed per ASTM C 361. See Section302.06.3 for specific requirements.The individual requirements and specifications for the above pipe materials are listed in the remainder of this Section.Vitrified Clay Pipe (VCP) for gravity sewer construction is not allowed.302.03 Polyvinyl Chloride Pipe (PVC)The minimum requirements for PVC are as follows:1.SizeMaximum size - Forty-eight (48) inches2.Materiala.Pipe installations up to twenty-five (25) feet deepPolyvinyl Chloride (PVC) sanitary sewer pipe and fittings eight (8) inches through fifteen (15) inches in diameter shall be theintegral wall bell and spigot-type with elastomeric seal joints and smooth walls conforming to ASTM D 3034 and a minimum ofSDR 35. PVC sanitary sewer pipe and fittings eighteen (18) inches in diameter and larger shall be smooth wall conforming toASTM F 679.All fittings shall be heavy walled fittings.Pipe shall have a minimum pipe stiffness of 46 psi when measured at5% vertical ring deflection and tested in accordance with ASTM D 2412 and a minimum tensile strength of 34.50 MPa.b.Pipe installations over twenty-five (25) feet deepPVC pipe materials shall be ASTM D 2241 (SDR 26 minimum) with minimum cell classification of 12454, AWWA C900 (DR 25min), or AWWA C905 (DR 25 min).When pipe conforming to AWWA Standards is used, all fittings shall also be made of PVC.3. Joints and Gasketsa. Jointsi.Flexible gasketed joints shall be compression type so that when assembled, the gasket inside the bell will be compressed radially onthe pipe spigot to form a watertight seal.ii.Joints shall be as follows:For pipe conforming to ASTM D 3034 and F 679, the joint shall meet the requirements of ASTM D 3212.For pipe conforming to ASTM D 2241, AWWA C900, and AWWA C905, the joint shall meet the requirements ofASTM D 3139.iii.The assembly of joints shall be in accordance with the pipe manufacturer's recommendations.b. GasketsAll gaskets shall meet the requirements of ASTM F 477. Solvent welded joints and coupling joints are not acceptable.4.Field Cutting of PipeAll field-cutting of pipe shall be done in a neat, trim manner using a hand or power saw, and the cut end shall be beveled using a fileor wheel to produce a smooth bevel of approximately 15° and be a minimum depth of one-third (1/3) the pipe wall thickness orbeveled as specifically recommended by the pipe manufacturer. Field cut pipe will only be allowed to be installed at manholes, atprefabricated tees and wyes, and at the connection of new sanitary sewer to existing sanitary sewer.5.Rejection of Damaged PipePVC pipe possessing the following defects may be rejected for installation: variation from straight centerline; elliptical shape; illegiblemarkings as required; deep or excessive gouges or scratches of the pipe wall; fractures, punctures, or cracks passing through thepipe wall; and damaged ends where such damage would prevent making a satisfactory joint.6.Pipe MarkingsFor PVC pipe, each length of pipe must be marked per ASTM and AWWA requirements and at a minimum with the following: name ofmanufacturer, tradename or trademark, nominal pipe size, production/extrusion code, material and cell class designation, ASTMdesignation, and SDR number. In addition, the plain end of each pipe length shall have rings painted around the pipe at the properlocation to allow field checking of the correct setting depth of the pipe in the bell.7.Manufacture and Constructiona.PipesPipes shall be manufactured and tested in accordance with appropriate ASTM and AWWA standards to result in a solid wallpipe.b.FittingsTees, wyes, and other fittings shall be heavy-walled and capable of withstanding the same stresses as the pipe to which theyare connected. All fittings shall be fabricated from pipe meeting the requirements of these standards.302.04 Closed Profile Large Diameter PVCThe minimum requirements for Closed Profile PVC pipe are as follows:1.SizeMaximum Size - Fifty-four (54) inches2.MaterialsPipe and fittings shall be made from polyvinyl chloride compounds which comply with the requirements as specified by ASTM F 1803with a minimum cell classification of 12364. Minimum pipe stiffness shall be 46 psi when tested in accordance with ASTM D 2412. Theactual inside and outside diameter of the pipes shall be in accordance with current manufacturer's literature, unless otherwise agreedto by the Department. Pipe shall be supplied in nominal lengths of fourteen (14) feet unless special sections are needed forconstruction in which case shorter or longer lengths may be used. Actual laying length shall be nominal plus or minus two (±2) inches.3.Joints and GasketsAll pipe joints shall be of the bell and spigot type with elastomeric seals and conform to the requirements of ASTM D 3212. Gasketsshall be factory installed and chemically bonded to the bell end of the pipe. Gasket material shall conform to the requirements ofASTM F 477.4.Rejection of Damaged PipePipe possessing the following defects may be rejected for installation: variation from straight centerline; elliptical shape; illegiblemarkings as required herein; deep or excessive gouges or scratches of the pipe wall; fractures, punctures, or cracks passing throughthe pipe wall or wall profile; damaged ends where such damage would prevent making a satisfactory joint, voids in the pipe walls, orother noticeable defects in pipe manufacture.5.MarkingEach PVC closed profile wall pipe length and fitting shall be clearly marked per ASTM F 1803 and at a minimum with the following:manufacturer's name, nominal pipe size, cell classification, pipe stiffness - 46 PSI, and certification.6.Manufacture and Constructiona.PipesManufacture pipe by the I-beam profile construction process to result in a non-porous, corrosion-resistant, consistent structure.b.FittingsFlanges, elbows, reducers, tees, wyes, laterals and other fittings shall be capable of withstanding the same stresses as the pipeto which they are connected. All fittings shall be fabricated from pipe meeting the requirements of these standards. Fabricatedmiter joints shall be reinforced by fusion heat welding.Closed Profile Large Diameter PVC Gravity Sewer shall be Lamson Vylon Pipe or an approved equal.302.05 Centrifugally Cast Fiberglass Reinforced Polymer Mortar PipeThe specifications herein shall be considered as the minimum requirements for Centrifugally Cast Fiberglass Reinforced Polymer MortarPipe. Due to the differing manufacturing processes and strength characteristics between the different manufacturers, the pipe shall bedesigned for site specific conditions. The minimum requirements for Centrifugally Cast Fiberglass Reinforced Polymer Mortar Pipe are asfollows:1.SizeMaximum size - Sixty (60) inches2.MaterialsPipe shall be manufactured per ASTM D 3262. The actual inside and outside diameter of the pipes shall be in accordance with currentmanufacturer's literature, unless otherwise agreed to by the Department. Pipe shall be supplied in nominal lengths of twenty (20) feetunless special sections are needed for construction in which case shorter or longer lengths may be used. Actual laying length shall benominal ± two (2) inches. Minimum pipe stiffness shall be 46 psi when tested in accordance with ASTM D 2412. Applications whichare to be directly jacked into place or micro-tunneled shall utilize pipe configurations specifically designed for jacking or tunnelingapplications with no protrusions for the joint coupling.a.Resin SystemsThe manufacturer shall use vinylester resin systems for greater chemical resistance. Polyester resin systems with a provenhistory of performance in resisting sanitary sewerage may only be used with prior written approval from the Department andthen only after the Engineer determines the greater chemical resistance is not needed.b.Glass ReinforcementsThe reinforcing glass fibers used to manufacture the components shall be of commercial grade E-glass filaments with binder andsizing compatible with impregnating resins.c.Silica SandSand shall be minimum 98% silica with a maximum moisture content of 0.2%.d.AdditivesResin additives, such as curing agents, pigments, dyes, fillers, thixotropic agents, etc., when used, shall not detrimentally affectthe performance of the product.3. Joints and GasketsFiberglass sleeve couplings that utilize elastomeric sealing gaskets of an appropriate profile shall be the sole means to maintain jointwater-tightness. The joints must meet the performance requirements of ASTM D 4161. All joints shall be certified by the pipemanufacturer to perform at fifty (50) feet of hydrostatic head at 5% deflection. The gaskets shall be made of EDPM elastomericmembrane and shall be resistant to sewage, industrial wastes, and groundwater.4.Rejection of Damaged PipePipe possessing the following defects may be rejected for installation: variation from straight centerline; elliptical shape; illegiblemarkings as required herein; deep or excessive gouges or scratches of the pipe wall or liner; fractures, punctures, or cracks passingthrough the pipe wall; damaged ends where such damage would prevent making a satisfactory joint, voids in the pipe walls,delamination, cracking and crazing of liner or pipe wall, or other noticeable defects in pipe manufacture.5.MarkingsEach length of pipe shall be clearly marked per ASTM D 3262 and at a minimum with the following: manufacturer's name, tradenameor trademark, nominal pipe size, pipe stiffness, production code, and ASTM number.6. Manufacture and Constructiona.PipesManufacture pipe by the centrifugal casting process to result in a dense, non-porous, corrosion-resistant, consistent compositestructure. Pipes shall be tested in accordance with ASTM D 3262. MANDREL PROCESSES TO BUILD UP THE PIPE WALLARE NOT ALLOWED.b.FittingsFlanges, elbows, reducers, tees, wyes, laterals, and other fittings shall be capable of withstanding the same stresses as the pipeto which they are connected. They may be contact molded or manufactured from mitered sections of pipe joined byglass-fiber-reinforced overlays. Properly protected standard ductile iron, fusion-bonded epoxy coated steel and stainless steelfittings may also be used. Centrifugally Cast Fiberglass Reinforced Polymer Mortar Pipe shall be Hobas pipe or an approvedequal.302.06 Reinforced Concrete Pipe (RCP)The minimum requirements for Reinforced Concrete Pipe are as follows:1.SizeMinimum - Twenty-four (24) inchesMaximum - One hundred forty-four (144) inches2.Materiala.Reinforced Concrete:Reinforced concrete pipe shall be in accordance with ASTM C 76. Pipe wall thickness shall be either Wall B or Wall C asappropriate for the size and installation. When deep burial depths are greater than twenty-five (25) feet require an improved jointto resist higher head conditions, joint sections manufactured in accordance with ASTM C 361 with a joint rating of at least fifty(50) feet shall be incorporated. When special conditions exist and as authorized by the Department, reinforced concrete pipemanufactured in accordance with ASTM C 655 may be used. The minimum D-load design for ASTM C 655 pipe shall be 1000and the minimum increment of D-load shall be at least 200, if multiple pipe designs are proposed on a single project. For pipedesigned in accordance with ASTM C 76 or C 655, factors of safety shall be 1.5 for D-loads of 2000 and less, 1.25 for D-loads of3000 and higher and uniformly decreasing between 1.5 and 1.25 for D-loads between 2000 and 3000. The wall thickness shallnot be less than the wall thickness used to verify the D-load strength.b.Steel ReinforcementSteel reinforcement shall be in accordance with and placed to the requirements of the applicable tables in ASTM C 76, ASTM C361, or per the approved D-load design. Longitudinal reinforcement shall be continuous and all reinforcement shall have aminimum concrete cover of 1 inch. Minimum cover requirements do not apply to the mating surfaces of the joint, gasket seat, orend of longitudinals. Elliptical reinforcement shall not be permitted.c.Lift HolesLift holes are not allowed.d.LiningAll reinforced concrete pipe for sanitary sewers shall be factory lined with one of the following materials: T-Lock PVC by Ameron,GSE Studliner by Grundle/SLT Environmental, Agru Sure Grip by Agru America, or approved equal.Liners shall be completed with heat welded joints at all pipe joints where the liner is discontinuous across the joint. Liner sheetswith adhesive backing or other non-heat welded joint overlays are not permitted.ii.Liner shall be embedded in concrete to withstand a test pull of at least 100 pounds per linear inch, applied perpendicularly to theconcrete surface for a period of one minute, without rupture of the locking extensions or withdrawal from embedment. This test shall be madeat a temperature of 70-80 degrees Fahrenheit inclusive.iii.Lining material shall have good impact resistance, shall be flexible, and shall have an elongation sufficient to bridge up to one-quarter(1/4) inch settling cracks, which may occur in the joint after installation, without damage to the lining.iv.The lining shall be repairable at any time during the life of the pipe or structure by heat welding additional materials to the liner.v.The lining materials shall be resistant to municipal sewage.3.Joints and GasketsAll joints for pipes in accordance with ASTM C 76 and ASTM C 655 shall comply with the requirements of ASTM C 443. Joints andgaskets designated to be in excess of twenty-five (25) feet of head shall be designed in accordance with ASTM C 361. Only onestyle of joint system or configuration shall be permitted between adjacent manholes.4.Rejection of Damaged PipePipe possessing the following defects may be rejected for installation: variation from straight centerline; elliptical shape; illegiblemarkings; fractures in excess of 0.01 inch or cracks passing through the pipe wall; damaged ends where such damage would preventmaking a satisfactory joint, voids and/or honeycombing in the pipe walls, delamination of pipe liner, cracking and crazing of liner, orother noticeable defects in pipe or liner manufacture.5.MarkingAll markings required by the appropriate ASTM specification shall be legibly marked on each section of pipe.6.Manufacturer and ConstructionManufacture and test pipe sections in accordance with ASTM C 76, C 361, or C 655 as appropriate for the strength, class, size, andjoint design utilized.7.Special Shaped PipeSpecial shaped pipe shall conform to the specifications for straight pipe insofar as applicable. Special design or construction necessaryfor specials shall be subject to approval by the Department on a case-by-case basis.302.07 Ductile Iron Pipe (DIP)The minimum requirements for Ductile Iron Pipe (DIP) are as follows:1.SizeMaximum - Sixty (60) inches2.MaterialsDuctile Iron Pipe shall be centrifugally cast and shall conform to ANSI/AWWA A21.51/C151 and ASTM A 746. Thickness or pressureclass requirements of ductile iron pipe may be used for design in the conveyance of sanitary sewage by gravity. The minimum pipe wallthickness allowed shall be Class 250. Weights of pipe fittings shall conform strictly to the requirements of Specifications. The minimumlaying lengths shall be eighteen (18) feet.3.Coatings and Liningsa.CoatingsThe outside surfaces of the pipe and fittings shall be bituminous-coated complying with ANSI/AWWA A2 1.51/C1 51 andANSI/AWWA A21.10/C1 10.b.LiningsThe inside surfaces of all pipe, fittings, and adapters shall be lined with factory applied Protecto 401® ceramic epoxy lining, orapproved equal.4.JointsMechanical, push on or restrained joints shall be provided. Flanged joints are not allowed for buried applications.a.Mechanical joints and accessories shall conform to AWWA C1 11/ ANSI A21 .11. The bolts and nuts shall be corrosion resistant highstrength alloy steel.b.Ductile iron pipe push-on type joints shall conform to ANSI A21 .1 1/AWWA C111. Fittings shall be ductile iron and shall comply withANSI Specification A21.10/AWWA C110.c.Restrained joints shall be manufactured in accordance with pipemanufacturers' requirements. Locking rings, tabs, inserts, or gaskets with inset steel grips may all be used for gravity sanitarysewer applications.5.FittingsFittings shall be standardized for the type of pipe and joint specified, and shall comply with ANSI A21 .10/AWWA C1 10.6.Rejection of Damaged PipePipe possessing the following defects may be rejected for installation: variation from straight centerline; elliptical shape; illegiblemarkings as required herein; deep or excessive gouges or scratches of the pipe wall or lining; fractures or cracks in the pipe wall orlining; damaged ends where such damage would prevent making a satisfactory joint, delamination of linings, cracking and crazing ofliner, or other noticeable defects in pipe manufacture.7.MarkingsEach pipe length shall be marked per ASTM A 746 and at a minimum the following: nominal size and class designations for the variousclasses of pipe and fittings shall be cast onto fittings in raised numerals, and cast or stamped on the outside of each section of pipe.Weights shall be plainly and conspicuously painted in white on the outside of each section of pipe and each fitting after the exteriorcoating has hardened.8.Manufacturer and ConstructionManufacture and test completed pipe sections in accordance with ANSI/AWWA A21 .4/C1 04, ANSI/AWWA A21 .51/C1 51,ANSI/AWWA A2110/C110 and AWWA C111 (ANSI A-21.11) as appropriate.302.08 Prestressed Concrete Cylinder Pipe (PCCP)The minimum requirements for pre-stressed concrete cylinder pipe for gravity applications are as follows:1.SizeMinimum Size - thirty (30) inchesMaximum Size - One hundred forty-four (144) inches2.MaterialThe pipe shall conform to the requirements of AWWA C301. C301 pipe shall be designed in accordance with AWWA Standard C304.The pipe design shall be based on the working pressures, surge pressures, earth cover, and live load criteria provided in the contractdocuments. The external load design shall be suitable for the installation conditions shown in the project plans.3.LiningAll PCCP pipe shall be factory lined with one of the following materials: T-Lock PVC by Ameron, GSE Studliner by Grundle/SLTEnvironmental, Agru Sure Grip by Agru America, or approved equal.a. Liners shall be completed with heat welded joints at all pipe joints where the liner is discontinuous across the joint. Liner sheetswith adhesive backing or other non-heat welded joint overlays are not permitted.b.Liner shall be embedded in concrete to withstand a test pull of at least 100 pounds per linear inch, applied perpendicularly to theconcrete surface for a period of one minute, without rupture of the locking extensions or withdrawal from embedment. This test shall be madeat a temperature of 70-80o Fahrenheit inclusive.c.Lining material shall have good impact resistance, shall be flexible, and shall have an elongation sufficient to bridge up to one-quarter(1/4) inch settling cracks, which may occur in the joint after installation, without damage to the lining.d.The lining shall be repairable at any time during the life of the pipe or structure by heat welding additional materials to the liner.e.The lining materials shall be resistant to municipal sewage.4. JointsSteel and rubber gaskets shall conform to AWWA C301.5.Fittings and Special SectionsFittings and special pipe sections shall be designed and fabricated to the requirements of the appropriate AWWA standards andAWWA Manual M9 Chapter 8, as applicable. All required flanges shall conform to AWWA C207 Class D requirements for standardsteel flanges corresponding to the pipe working pressures. The PVC lining in fittings and special sections shall be attached to themortar lining using methods acceptable to the manufacturer of the lining material.6.Rejection of Damaged PipePipe possessing the following defects may be rejected for installation: variation from straight centerline; elliptical shape; illegiblemarkings; fractures in excess of 0.01 inch, cracks passing through the pipe wall; damaged ends where such damage would preventmaking a satisfactory joint, voids and/or honeycombing in the pipe walls, or other noticeable defects in pipe manufacture.7. Marking of PipeThe inside of each pipe section, fitting, or special pipe section shall be plainly marked with the pipe diameter and pressure class forwhich the section or fitting is designed. In addition, all fittings and special pipe sections shall be marked with an identifying number orstation corresponding to that shown on the layout schedule. All fittings or special sections requiring special field orientation duringinstallation shall be properly marked.SECTION 303 Laterals303.01 IntroductionThis Section applies to the materials to be used for the construction of laterals.For materials to be used for gravity sewers refer to Section 302.For materials to be used for force mains refer to Section 304.For materials to be used for manholes refer to Section 305.303.02Lateral MaterialsThe minimum requirements for laterals shall conform to the following:1.Allowable Pipe Materials:The following are the only materials that shall be used for laterals.MaterialDesignationClassificationPVCASTM D 3034SDR 35Cell Class 12454 or 12364PVCASTM D 2241SDR 32.5Cell Class 12454PVCASTM D 2466Schedule 40Cell Class 12454PVCASTM D 2467Schedule 80Cell Class 12454HDPE*ASTM F 714DR 17Hydrostatic Design Basis of 1600 psi*HDPE is only allowed for pipe bursting applications, shall utilize DIPS pipe sizing, and shall have a light reflective interior. Standardblack interior lined pipe shall not be accepted.Vitrified Clay Pipe (VCP) for lateral construction is not allowed.2.Jointsa.For four (4) inch and six (6) inch lateralsJoints shall be solvent cement type for PVC or butt fused type for HDPE.b.For eight (8) inch and larger lateralsJoints shall be either flexible gasket push-on type or solvent cement type for PVC or butt fused type for HDPE. Joints shall beinstalled in accordance with the manufacturer's recommendations.303.03 Controlled Settlement (Slip) JointsThe controlled settlement joint shall be a double gasketed joint made specifically for the purpose of allowing axial movement of the riser pipefor forces from 500 lb/ft to 1,970 lb/ft. The allowable movement within the joint shall be five and one-half (51/2) inches. The controlledsettlement joint shall be as manufactured by Plastic Trends Inc., or approved equal.SECTION 304 Force Main Material304.01 IntroductionThis Section applies to materials to be used for the construction of force mains.For materials to be used for gravity sewers refer to Section 302.For materials to be used for laterals refer to Section 303.For materials to be used for manholes refer to Section 305.304.03Polyvinyl Chloride (PVC) PipeThe minimum requirements for PVC pipe for force mains are as follows:1.MaterialPVC force main pipe shall conform to ASTM D 2241, AWWA C900 or AWWA C905.For ASTM D 2241, the material shall conform to ASTM D 1784, Cell Class 12454 and a hydrostatic design stress of 2000 psi. Theminimum pressure class/SDR rating shall be Class 200/SDR 21. For AWWA C900 the material shall conform to ASTM D 1784 for cellclass 12454 and a hydrostatic design basis of 4000 psi. The minimum pressure class/DR rating shall be Class 200/DR 14. For AWWAC 905 the material shall conform to ASTM D 1784 for cell class 12454 and a hydrostatic design basis of 4000 psi. The minimumpressure class/DR rating acceptable shall be Class 200/DR 21.2.Joints Joints shall be a bell end coupling push-on type with joint restraints as needed. Joint restraints shall be Megalug® stylemechanical joints for PVC pipe as manufactured by EBAA IRON or approved equal.The push-on joint and gaskets shall meet the requirements for ASTM D 3139 and F 477.3.FittingsFittings shall be restrained joint ductile iron fittings conforming to ANSI A21 .10/AWWA C1 10 and ANSI A21 .1 1/AWWA C111.Restrained joints shall be Megalug® style for PVC as manufactured by EBAA Iron, or approved equal.4.Rejection of Damaged PipePipe possessing the following defects may be rejected for installation: variation from straight centerline; elliptical shape; illegiblemarkings as required herein; deep or excessive gouges or scratches of the pipe wall; fractures, punctures, or cracks passing throughthe pipe wall; damaged ends where such damage would prevent making a satisfactory joint.5.MarkingsEach length of pipe must be marked per ASTM and AWWA and at a minimum with the following information: name of manufacturer;tradename or trademark; nominal pipe size; production/extrusion code; material and cell class designation; and ASTM designation.304.04 High Density Polyethylene (HDPE) PipeThe minimum requirements for HDPE pipe for force main applications are as follows:1.MaterialMaterials used for the manufacture of HDPE pipe shall be extra high molecular weight, high density ethylene/hexane copolymer PE3408 polyethylene resin meeting the requirements of ASTM D 3350 with a cell classification of PE345434C for materials in accordancewith ASTM F 714, DR1 1 or PE334434C for materials in accordance with AWWA C906, DR14. Pipe shall be sized in accordance withDIPS. All material shall have a hydrostatic design basis of 1600 psi. The pipe shall contain no recycled compound except thatgenerated in the manufacturer's own plant from resin of the same specification from the same raw material. All material shall be listedby the Plastic Pipe Industry in the name of the pipe manufacturer and shall be based on ASTM D 2837 and PPI TR-3 testing andvalidation for samples of the pipe manufacturer's production pipe.2.JointsHDPE pipe shall be joined into continuous lengths on the job-site above ground. The joining method shall be the butt fusion methodand shall be performed in strict accordance with the pipe manufacturer's recommendations. Electrofusion shall not be used except asneeded to connect adjacent directionally drilled sections which are to be connected in the trench bottom. Mechanical joint adapters arerequired to mechanically connect the HDPE pipe to the main line. Joint restraint to prevent axial separation shall be304.04 High Density Polyethylene (HDPE) PipeThe minimum requirements for HDPE pipe for force main applications are as follows:1.MaterialMaterials used for the manufacture of HDPE pipe shall be extra high molecular weight, high density ethylene/hexane copolymer PE 3408 polyethyleneresin meeting the requirements of ASTM D 3350 with a cell classification of PE345434C for materials in accordance with ASTM F 714, DR1 1 orPE334434C for materials in accordance with AWWA C906, DR14. Pipe shall be sized in accordance with DIPS. All material shall have a hydrostaticdesign basis of 1600 psi. The pipe shall contain no recycled compound except that generated in the manufacturer's own plant from resin of the samespecification from the same raw material. All material shall be listed by the Plastic Pipe Industry in the name of the pipe manufacturer and shall bebased on ASTM D 2837 and PPI TR-3 testing and validation for samples of the pipe manufacturer's production pipe.2.JointsHDPE pipe shall be joined into continuous lengths on the job-site above ground. The joining method shall be the butt fusion method and shall beperformed in strict accordance with the pipe manufacturer's recommendations. Electrofusion shall not be used except as needed to connect adjacentdirectionally drilled sections which are to be connected in the trench bottom. Mechanical joint adapters are required to mechanically connect the HDPEpipe to the main line. Joint restraint to prevent axial separation shall be incorporated into the design of the sleeve or coupling used to connect HDPEpipe plain ends. Internal pipe wall stiffeners must be used when restraining HDPE. The restrained coupling system shall be Series 4800 manufacturedby EBAA Iron, Inc. or an approved equal.3.Fittings Fittings shall be either HDPE or ductile iron.HDPE fittings shall be manufactured in accordance with ASTM D 3261 by injection molding, a combination of extrusion and machining or fabricatedfrom HPDE pipe conforming to this Standard. Fittings shall be fully pressure rated and provide a working pressure equal to the adjacent pipe with anincluded two (2) to one (1) safety factor. Ductile iron fittings shall be restrained joint ductile iron fittings conforming to ANSI A21.10/AWWA C1 10 andANSI A21 .1 1/AWWA C111 with MJ Adapters.4.Rejection of Damaged PipePipe possessing the following defects may be rejected for installation: variation from straight centerline; elliptical shape; illegible markings as requiredherein; deep or excessive gouges or scratches of the pipe wall; fractures, punctures, or cracks passing through the pipe wall; damaged ends wheresuch damage would prevent making a satisfactory joint.5.MarkingsDuring the extrusion production, the HDPE pipe shall be continuously marked per ASTM and AWWA with durable printing with at a minimum thefollowing: nominal pipe size, dimension ratio, pressure rating, trade name, material classification, certification bases, and date.6. Handling and StorageIn addition to the requirements in Section 301.05, when moving fused sections of pipe, chains or cable type chokers shall be avoided, nylon slings arepreferred. Care must be exercised to avoid cutting or gouging the pipe.304.05Ductile Iron Pipe (DIP)The minimum requirements for ductile iron pipe for force main applications are as follows:1.MaterialPipe shall be centrifugally cast in metal or sandlined molds and shall conform to ANSI A21.51/AWWA C151. The minimum pipe wall thickness allowedshall be Class 250 for all sizes.2.FittingsFittings shall be push-on or mechanical joint, iron or ductile iron conforming to ANSI A21.10/AWWA C1 10.3.CoatingsOutside surfaces of the pipe and fittings shall be bituminous-coated complying with ANSI/AWWA A21.51/C151 and ANSI/AWWA A21.10/C110.4.Joints and GasketsPipe joints shall be push-on type or mechanical-type complying with ANSI A21 .1 1/AWWA C111 unless otherwise noted on the drawings. Restrainedjoints shall be Megalug® by EBAA Iron, Flex-Ring or Lok-Ring by American Pipe, TR-Flex and Field Lok by US Pipe, Snap-Lok or Bolt-Lok by GriffinPipe, or other similar manufacturer supplied systems.Gaskets for mechanical joints, push on joints, and restrained joints shall conform to ANSI A21 .1 1/AWWA C111.5.Rejection of Damaged PipePipe possessing the following defects may be rejected for installation: variation from straight centerline; elliptical shape; illegible markings as requiredherein; deep or excessive gouges or scratches of the pipe wall or lining; fractures or cracks in the pipe wall or lining; damaged ends where suchdamage would prevent making a satisfactory joint, delamination of linings, cracking and crazing of liner, or other noticeable defects in pipe manufacture.6. MarkingsThe size and class designations for the various classes of pipe and fittings shall be cast onto fittings in raised numerals, and cast or stamped on theoutside of each section of pipe. Weights shall be plainly and conspicuously painted in white on the outside of each section of pipe and each fitting afterthe exterior coating has hardened.304.06 Prestressed Concrete Cylinder Pipe (PCCP)The minimum requirements for pre-stressed concrete cylinder pipe for force main applications are as follows:1. MaterialThe pipe shall conform to the requirements of AWWA C301 or C303. C301 pipe shall be designed in accordance with AWWA Standard C304. C303pipe shall be designed in accordance with the procedures shown in AWWA Manual M9, Chapter 7. The pipe design shall be based on the workingpressures, surge pressures, earth cover, and live load criteria provided in the contract documents. The external load design shall be suitable for theinstallation conditions shown in the project plans.2.JointsSteel and rubber gaskets shall conform to AWWA C-301 or AWWA C-303 as appropriate.3.Fittings and Special SectionsFittings and special pipe sections shall be designed and fabricated to the requirements of the appropriate AWWA standards and AWWA Manual M9Chapter 8, as applicable. All required flanges shall conform to AWWA C207 requirements for standard steel flanges corresponding to the pipe workingpressures.4.Rejection of Damaged PipePipe possessing the following defects may be rejected for installation: variation from straight centerline; elliptical shape; illegible markings; fractures inexcess of 0.01 inch, cracks passing through the pipe wall; damaged ends where such damage would prevent making a satisfactory joint, voids and/orhoneycombing in the pipe walls, or other noticeable defects in pipe manufacture.5.Marking of PipeThe inside of each pipe section, fitting, or special pipe section shall be plainly marked with the pipe diameter and pressure class for which the section orfitting is designed. In addition, all fittings and special pipe sections shall be marked with an identifying number or station corresponding to that shown onthe layout schedule. All fittings or special sections requiring special field orientation during installation shall be properly marked.SECTION 305 Manhole Materials and Appurtenances305.01IntroductionThis Section applies to the materials and specifications for manholes, wetwells, valve vaults, meter vaults and appurtenant structures.305.02Precast Sanitary ManholesPrecast manholes, including drop manholes, shall be per Figures 300.01 through 300.06 and the following:1.MaterialPrecast reinforced concrete manholes shall be manufactured, tested, and marked in accordance to ASTM C 478. Manhole sections shall not beinstalled until at least five (5) days after having been cast unless permitted in writing by the Department.2.JointsAll joints between precast manhole elements (excluding adjusting rings) shall have a rubber gasket per ASTM C 443, and one-half (1/2) inch diameterbutyl rubber rope sealant per ASTM C 990.3.Lift HolesNo “see through” lift holes shall be allowed on precast concrete manholes.4.Rejection of Damaged ManholesManholes possessing any of the following defects shall be subject to rejection:a.Fractures or cracks passing through the shell, except for a single end crack that does not exceed the depth of the joint;b.Defects that indicate imperfect proportioning, mixing and molding;c.Surface defects indicating honeycombed or open profile; damaged ends, when such damage would prevent making a satisfactory joint;d.The internal diameter of the manhole section shall not vary more than 1% from the nominal diameter;e.Deviations more than one-quarter (1/4) inch from the straight edge at any point across the top of the manhole cone section or riser ring;f.Visible steel bars along the inside or outside surface of the manhole except for reinforcement stirrups or spacers used to position the cage duringmanufacture, and reinforcement bars visible at the manhole structure end, provided these reinforcement bar ends are properly grouted inconformance with applicable ASTM specifications; and/org. Illegible or unmarked manhole sections not clearly marked with date of manufacture, Tradename, size designation part number, or ASTM number.5. Other RequirementsPrecast manhole cones shall be as follows:a.Eccentric offset type;b.The top internal portion of the cone shall have a minimum four (4) inch uniform circumference to accept an internal chimney seal as shown inFigures 300.01 through 300.06; andc. The top of the cone shall be cast to accept the one of the precast adjusting rings as shown in Figure 300.08.305.03Inside or outside drop manholes shall be constructed consistent with the requirements Drop Manholes of Section 305.02.305.04 Monolithic (Cast-In-Place) Sanitary Sewer StructuresMonolithic pour structures will be approved on a case-by-case basis provided plans and specifications identifying the concrete mix, steel reinforcementdetails, pipe connections, and manhole dimensions are submitted and approved prior to construction. Substantial field changes of the approved constructiondrawings shall be certified by the Engineer, and receive approval of the Division prior to completion of the proposed work.305.05 Concrete BasesBase sections for forty-eight (48) and sixty (60) inch diameter precast manholes shall be constructed with the base and first riser section as one completeintegral (monolithic) precast unit. The concrete base shall be as follows: a minimum of six (6) inch thickness for forty-eight (48) inch diameter structures and aminimum of eight (8) inch thickness for larger diameter structures. Monolithic pour or precast manholes shall be constructed of Class A concrete having acompressive strength of 4000 psi. Precast manholes seventy-two (72) inches in diameter and larger with separate base sections shall utilize a gasketed jointbetween the base section and first riser section.305.06 Flow Channels and Bench WallsThe channels shall be shaped and formed for a clean transition with proper hydraulics to allow the smooth conveyance of flow through the manholes. Thebench wall shall be formed from the invert to a minimum height of 80% of the inside diameter of the inlet and outlet pipes to form a “U” shaped channel. Thebench top shall be constructed at a one-half (1/2) inch per foot slope from the manhole wall. Refer to Figure 300.07 for typical details of flow channels inmanholes. Where a flow channel is constructed as an integral part of the precast base, it shall be shaped and formed as described above, with the exceptionthat the bottom of the flow channel may be formed from the bottom of inlet and outlet pipes if the pipe wall thickness is not greater than one (1) inch. Forcast-in-place flow channels, the bottom invert of all pipes entering a manhole shall be at least three (3) inches above the top of the base slab to the outletinvert so the finished sewer channel may be installed and shaped. For connections to existing sanitary sewer structures, flow channels shall be shaped as if itwere a new manhole.305.07 Manhole Adjusting RingsOnly concrete adjusting rings are allowed. Concrete adjusting rings shall conform to ASTM C 478 and be free from voids, cracks, and other defects. Theadjusting ring shall be from the same manufacturer as the manhole cone section to assure compatibility and a watertight seal per Figure 300.08. Theminimum thickness of the concrete adjusting ring shall be four (4) inches.305.08StepsSteps shall conform to the requirements of ASTM C 478 and be manufactured using steel rods encased in polypropylene plastic. Steps shall be factoryinstalled when the manhole is manufactured.305.09 Sewer to Manhole ConnectorsSewer pipe connections to manholes shall be made with resilient rubber connectors manufactured in accordance with ASTM C 923. Connectors shall besecured to the manhole by either being cast-in or connected with an expandable stainless steel band. Connector shall be secured to the pipe with a stainlesssteel band. The stainless steel elements of the connector shall be totally non-magnetic, Series 305 stainless steel. The connector shall be the sole elementrelied upon to assure a flexible, watertight seal from the sewer to the manhole. The connectors shall be as manufactured by Kor-N-Seal, Press Seal, A-Lok,or approved equal.305.10 Manhole Chimney SealInternal Manhole Chimney Seals shall consist of a flexible internal rubber sleeve, interlocking extensions, and stainless steel compression bands conformingto ASTM C 923. The seal shall remain flexible throughout a 25-year design life, allowing repeated vertical movement of the frame of not less than two (2)inches and repeated horizontal movement of the frame of not less than one-half (1/2) inch. The sleeve portion of the seal shall be a minimum double pleatedwith a minimum unexpanded vertical height of 8, 10, or 13 inches, respectively. The sleeve and extension shall have a minimum thickness of three-sixteenths(3/16) inches and shall be made from a high quality rubber compound conforming to the applicable requirements of ASTM C 923, with a minimum 1500 psitensile strength, a maximum 18% compression set, and a hardness (durometer) of 48 ± 5. The area of the seal that compresses against the manholeframe/casting and the chimney/cone shall provide a watertight seal. The bands shall be fabricated from 16 gauge stainless steel with no welded attachmentsand shall have a minimum adjustment range of two (2) diameter inches. Any screws, bolts, or nuts used to lock the band in place shall be stainless steel. Theinternal seals shall be as manufactured by Cretex Specialty Products, NPC Specialty Products, or an approved equal.305.11 Casting, Frames and CoversCastings shall be as follows:1. Catalog NumberThe frame and cover shall be as follows:a.Neenah R-1713-B-SP, orb.East Jordan Iron Works Model 1022-1AGSMD.All castings shall have a machined bearing surface with Type F concealed pickholes.2.MarkingsSanitary sewer manhole covers shall be a solid lid casting as detailed in Figure 300.09. The words “Sanitary Sewer” and “City of Indianapolis” must becast in recess letters two (2) inches in height onto solid lid covers.3.RequirementsCastings shall be manufactured in accordance with ASTM A 48 - Class 35B, and have a minimum tensile strength of 35,000 psi. Boltdown castingsshall be provided in Special Flood Hazard Areas.Casting shall be of uniform quality, free from blow holes, porosity, hard spots, shrinkage, distortion, or other defects. They shall be smooth andwell-cleaned by shot blasting or other approved method. All castings shall be manufactured true to pattern; component parts shall fit together in asatisfactory manner. Round frames and covers shall be of non-rocking design or shall have machined horizontal bearing surfaces to prevent rockingand rattling under traffic. All castings shall be fully interchangeable.SECTION 401 Installation Requirements Applicable to Sanitary Sewers, Force Mains, and Laterals401.01 IntroductionThis Section provides the minimum installation requirements common to sanitary sewers, force mains, and laterals.For specific installation requirements for laterals refer to Section 402.For specific installation requirements for manholes, wetwells, valve vaults, and other appurtenant structures refer to Section 403.For trenchless installation requirements refer to Section 404.401.02 WorkmanshipThe minimum workmanship requirements during construction are as follows:1. Establishment of Line and GradeThe Contractor, Engineer, and/or Land Surveyor shall furnish and set all line and grade stakes (HUB). A Professional Engineer or Land Surveyorregistered in the State of Indiana will be required to set, or oversee the setting of, all bench mark stakes necessary for the installation of any sanitarysewer facility being constructed. Bench marks shall be set in strategic locations within the project to facilitate the installation of grade stakes. Horizontaland vertical control will be required to be provided with record drawings to be submitted to the Division upon completion of the project. The method ofestablishing and following line and grade in conformance with the approved construction plans may be determined by the Contractor.2.Material HandlingSuitable tools and equipment shall be used for the safe and convenient handling of all materials and for the installation of all sanitary sewer facilities. Allmaterial shall be unloaded with care. Care shall be taken to prevent pipe coatings, encasements or wrappings from being damaged. Each section ofpipe shall be carefully examined for cracks and other defects prior to installation. Pipe or fittings found to be cracked, broken, or otherwise defectiveeither before, during, or after installation, shall be removed and replaced with material free from defects. All pipes, gaskets, and other fittings shall bethoroughly cleaned prior to installation and shall be kept clean during construction.3. Point of Commencement and Direction of Laying PipeThe point of commencement for laying pipe should be the lowest point in the proposed line. Provisions for beginning construction at other than thelowest point in the proposed line shall be approved by the RPR. All bell and spigot pipe shall be laid with the bell end, or with the receiving groove endof tongue and groove pipe pointing upgrade or toward the lift station end of force mains. Each pipe shall be laid on an even firm bed, as required inSection 401.06 throughout its length, so that no uneven strain will come to any single portion of the pipe. Particular care shall be taken to prevent thetotal load from bearing on the pipe sockets. All bells of bell and spigot pipes shall be carefully placed into a receiving hole excavated into the pipebedding material. All pipes shall be properly joined utilizing the manufacturer's assembly marks. Adequate pressure shall be applied to the center ofeach tongue and groove pipe to ensure the proper joint seal is achieved.1.Construction BulkheadsBefore extending a sanitary sewer, the Contractor shall provide a watertight bulkhead or seal, in the existing sewer immediately downstream of thepoint of connection or the most practical location as determined by the RPR. This bulkhead shall be left in place until the new sanitary sewer has beencleaned of all accumulated water and debris and accepted by the Division. During all work stoppages in construction of the sanitary sewer, the openface of the last pipe laid shall be plugged with a watertight seal to prevent sand, water, earth, or other materials from entering the pipe. Whenever pipeand special castings are required to be cut, the cutting shall be done by skilled workers in such manner as to leave a smooth end at right angles to theaxis of the pipe without damage to the pipe casting or lining. CUTTING TORCHES SHALL NOT BE USED.2.Minimum Construction CoverUntil such time as a minimum of four (4) feet of compacted fill material has been placed over the installed sanitary sewer, lateral, or force main, theContractor shall not use heavy equipment in such a way as to cause damage to these pipelines or structures.3.Laying of Pipe in Cold WeatherThe Division or Department reserves the right to order pipe installation discontinued whenever, in their opinion, there is danger of the quality of workbeing impaired because of cold weather. The Contractor shall be responsible for heating the pipe and jointing material so as to prevent freezing ofjoints. No flexible or semi-rigid pipe shall be laid when the air temperature is less than 32° F unless proper precautions, per the manufacturer'srecommendations, are taken by the Contractor and the method is approved by the Engineer and the Division or Department. When pipes with rubbergaskets or resilient-type joints are to be laid in cold weather, sufficiently warm the gasket or joint material to facilitate making a proper joint. Noportion of a sanitary sewer facility shall be installed directly onto frozen ground or backfilled with frozen material.4.Construction Activities within the Public Right-of WayAll construction activities within the public right-of-way, including but not limited to surface removal, backfilling, and restoration, shall be per the latestversion of the Department of Metropolitan Developments “Regulations for Cuts within the Public Right-of-Way.”401.03 Trench Box and SheetingWhen required by the Occupational Safety and Health Act (OSHA) or any other entity having jurisdiction to protect life, property, or the work, sufficientprotective measures shall be utilized in accordance with 29 CFR Part 1926 or any other applicable regulation. Upon completion of the work, all temporaryforms, shores, and bracing, other than as specified herein, shall be removed. The minimum required density of structural backfill shall not be reduced due totrench box pulling. All voids left by the removal of sheeting shall be carefully filled with properly compacted bedding material. The Contractor shall employadequate safeguards to prevent movement of the pipe joint. If movement should occur, the Contractor shall reinstall the pipe. Any damage to pavement orother structures due to sheeting, shoring, or bracing shall be repaired by the Contractor at his own expense. Sheeting and bracing which is to remain in placeafter construction shall be cut off three (3) feet below the finished grade elevation. The City of Indianapolis will not assume any liability for the actions of theOwner, Contractor, or their agent(s), in the performance of the required sheeting, shoring, and bracing operations.401.04 Trench DewateringWhere groundwater is encountered, the Contractor shall make every practical effort necessary to secure a dry trench bottom prior to laying pipe and/or theinstallation of the sanitary sewer facility. The Contractor shall provide, install, and operate sufficient trenches, sumps, pumps, hoses, piping, wellpoints orother means necessary to depress and maintain the groundwater level below the base of the excavation. In addition, the dewatering shall be sufficient to stopweeping and running water from displacing soil and entering the trench through the trench walls. If unable to remove the standing water in the trench, theContractor shall over-excavate the proposed bottom grade of the sewer bedding, and place not less than six (6) inches of either No. 2 crushed stone, No. 8crushed stone, or No. 8 fractured faced aggregate in the over-excavated area. The Contractor shall be responsible for diverting or removing surface runoffand other accumulations of surface water from excavations in compliance with all applicable rules and regulations. The City will not assume any liability forthe actions of the Owner, or their agent(s), in the performance of the required dewatering operations. The Division or Department shall reserve the right tocease installation activities when trench conditions are not in conformance with this Manual. Under no circumstances shall surface water and/or groundwaterbe discharged to, disposed of, or allowed to flow into the City of Indianapolis sanitary sewer system except as provided in an Industrial DischargePretreatment Permit.401.05Trench InstallationsThe minimum requirements for trench installations are as follows:1. Trench WidthThe minimum width of the trench at and below the top of the sanitary sewer, lateral, or force main shall be only as wide as necessary for properinstallation and backfilling.The minimum trench width for sanitary sewers, laterals, and force mains shall not be less than the greater of the following:Minimum Width = Pipe O.D. + 16 inches orMinimum Width = (Pipe O.D. x 1.25) + 12 inchesUnder no circumstances shall the distance from the trench wall to the outside edge of the pipe be less than six (6) inches for pipes six (6) inches andless, and eight (8) inches for pipes eight (8) inches and larger.For flexible conduits, the lateral resistance of in-situ soils shall be of sufficient stiffness to provide the required pipe support. Where unstable trenchsidewall conditions exist, or where trench depth dictates the use of a moveable trench box, the Engineer shall determine the width of compactedbedding and backfill material necessary to provide adequate pipe side support.The minimum and maximum trench widths above the top of the sanitary sewer, lateral, and force main shall be determined by the Contractor and shallbe in conformance with all applicable safety regulations including, but not limited to, those promulgated by OSHA.2. General Trenching RequirementsWhenever pipe trenches are inadvertently excavated below the designed bedding bottom, the Contractor shall fill the over-excavated area withcompacted No. 8 crushed stone or No. 8 fractured face aggregate and shaped to form a firm, uniform trench base. In cases where a firm foundation isnot encountered at the required grade, the Contractor shall remove the unstable material to a sufficient depth not less than six (6) inches and replacedwith either No. 2 crushed stone, No. 8 crushed stone, or No. 8 fractured faced aggregate. When compacted and properly shaped, the fill material shallproduce a uniform and stable foundation along the entire length of the pipe. If more than one (1) foot of unstable material is encountered, theContractor shall take additional measures to ensure that additional stabilization is provided, such as geotextile fabric wrapping of the trench section oras approved by the Department. All rocks, boulders and stones six (6) inches in diameter and larger shall be removed. Boulders or rocks are not to beused for any portion of the trench backfill. The pipe trench shall not be excavated more than one hundred (100) feet in advance of pipe layingunless approved by the RPR or Department. In cases where material is deposited along open trenches, the material shall be placed and protectedso that no damage will result to the work or adjacent property as a result of rain or surface wash.401.06 Bedding and Backfill RequirementsBedding, haunching, initial backfill, and final backfill requirements are the same for sanitary sewers, laterals, and force mains.The minimum requirements are shown in Figures 400.01 through 400.03 and are as follows:1.Bedding, Haunching, and Initial Backfill.The requirements are determined by the type and size of pipe being installed and are as follows:a. Flexible Pipe - PVC, HDPE, Centrifugally Cast Fiberglass Reinforced Polymer Mortar, and Closed Profile Large Diameter PVCBedding, Haunching, and Initial Backfill - No.8 crushed stone or No. 8 fractured-faced aggregate. The minimum depths shall be as follows:Pipe Size, inches Depth Below BarrelDepth Above TopINCHESof Pipe, inches6 or less448 to 1541218 and larger812a.Semi-Rigid Pipe - Ductile Iron Pipe (DIP)Bedding, Haunching, and Initial Backfill - No. 8 crushed stone or No. 8 fractured-faced aggregate. The minimum depths shall be as follows:Pipe Size, inchesDepth Below Barrel, Depth Above Topinchesof Pipe, inches8 to 164618 and larger86b.Rigid Pipe - Reinforced Concrete Pipe (RCP) and Prestressed Concrete Cylinder Pipe (PCCP)i.Bedding and Haunching - No. 8 crushed stone or No. 8 fractured faced aggregate a minimum of eight (8) inches below the pipe barrel to thespringline (1/2 the outside diameter) of the pipe.ii.Initial Backfill - Clean fill material free of rocks larger than six (6) inches in diameter, frozen lumps of soil, wood, or other extraneous materialunless the construction is within five (5) feet of pavement then Section 401 .06.2.b.i. shall apply. For all installations, the bedding material shall beplaced in the trench bottom and compacted prior to laying the pipe. The bell holes shall be excavated for bell and spigot pipe so the entire pipebarrel rests on the bedding. The bedding shall be such that after the pipe has been placed to line and grade, there remains a four (4) inchminimum depth of material below the pipe barrel and a minimum of three (3) inches below the bell. For all installations, the haunching materialshall be shovel sliced or otherwise carefully placed and “walked” or hand tamped to the springline (1/2 the outside diameter) to ensurecompaction of the haunch area and complete filling of all voids. The initial backfill shall be added in six (6) inch lifts “walked” in for compaction.PLOT DATE: 7/10/2019 10:40 AMPLOT SCALE: 1:2.5849 EDIT DATE: 7/10/2019 EDITED BY: KMOORHEAD DRAWING FILE: P:\2019\00265\D. Drawings\Civil\Construction Documents\2019.00265.CE.C001.TS.dwg
7260 Shadeland Station | Indianapolis, Indiana 46256TEL 317.547.5580 | FAX 317.543.0270www.structurepoint.comProject NumberCERTIFIED BYISSUANCE INDEXDATE:PROJECT PHASE:REVISION SCHEDULENO.DESCRIPTIONDATE07/10/2019CONSTRUCTION DOCUMENTS2019.00265POST ROADDEVELOPMENTPost Road &Prospect StreetIndianapolis, IN 46239CONSTRUCTION9775 Crosspoint BlvdSuite 105Indianapolis, IN 46256317.567.61008801 River Crossing BoulevardSuite 300Indianapolis, IN 46240C005SPECIFICATIONS